Consider the circuit in the figure with the current

Question

Consider the circuit in the figure, with the current directions defined as shown. There are four resistors in this circuit (R₁, R₂, R₃, and R₄) and four batteries with emfs Ac„°₁ = 18.5 V, Ac„°₂ = 5 V, Ac„°₃ = 11.5 V, and Ac„°₄ = 22.8 V, each with internal resistance given by r_i as marked in the figure.

Randomized Variables

Ac„°₁ = 18.5 V
Ac„°₂ = 5 V
Ac„°₃ = 11.5 V
Ac„°₄ = 22.8 V

Part (a) Calculate the current I₂ in amps.

Part (b) Calculate the current I₃ in amps.

Part (c) Calculate the current I₁ in amps.